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E. B. BARKER. PHOTOGRAPHIU PAPER ROLL HOLDER; No. 407,050. Patented July 16, 1889.

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(No-Model.) I 2 Sheets-Sheet 2. E. B. BARKER. PHOTOGRAPHIG PAPER ROLL HOLDER.

No. 407,050. Patented July 16, 1889.

INVENTOR a? Q? MM/WW ATTOR w my UNITED STATES PATENT OFFICE.

ERASTUS B. BARKER, OF NEXV YQRK, N. Y., ASSIGNOR T0 E. & H. T. ANTHONY & COMPANY, OF SAME PLACE.

PHOTOGRAPHIC PAPER-ROLL HOLDER.

SPECIFICATION forming part of Letters Patent No. 407,050, dated July 16, 1889.

Application filed December 12, 1885. Serial No. 185,477. (No model.)

To all whom it may concern.-

Be it known that I, ERASTUS B. BARKER, of the city, county, and State of New York, have invented new and useful Improvements in Photographic Paper-Roll Holders, of which the following is a full, clear, and exact. description.

This invention relates to roll-holders for photographic cameras, in which the sensitized paper or sheet is arranged upon rollers placed at a suitable distance apart within a box or case, which takes the place of the ordinary plate-holder, and in which said paper is rolled upon the one roller and unrolled from the other to make a series of successive exposures throughout the length of the sensitized strip or sheet.

The invention consists in certain novel constructions and combinations of parts in a photographic paper-roll holder of the above description, substantially as hereinafter described, and pointed out in the claims, and whereby increased conveniences and advantages are secured, as hereinafter set forth.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a view in perspective of the entire holder or case, as opened, both on its front and back, and showing an attached automatic index as partly broken away. Fig. 2 is a perspective view of a face-board used in the case, detached. Fig. 3 is a vertical central mainly sectional transverse view, upon a larger scale, of the holder or case in a closed condition. Fig. at is a view in perspective of a tension-roller holder or carrier; Fig. 5, a broken longitudinal section of the paper takeup roller with its tension-carrier attached; Fig. 6, a perspective view of a wire used to attach the paper to either roller,'and Fig. 7 a perspective view of one of the paper-carrying rollers detached.

A indicates the body of the box or case part of the entire holder, 13 its front section carrying the exposing shutter or slide 0, andD the back section of the holder. Said front section B and back section D are both connected along their one side or edge by hinges a a, and

fastened by hooks or other suitable fastenings 011 their opposite edges, whereby the whole holder may be thrown open, as shown in Fig. 1, both from its front and rear, to facilitate the insertion of the paper-carrying rollers and regulation and manipulation of the interior mechanism and otherparts of the holder.

0 C are the compartments at opposite ends of the body A, in which the photographic paper-supply and take-up rollers D E are arranged, and C C are supplementary and intermediate similar compartments within the body A, and of which there may be any desired number, for receiving and storing substitute paper-carrying rollers with the paper wound on them, to take the place of the end rollers D E when their paper is used up. This makes the holder also a convenient supplycase for replenishing the paper when required.

The rollers D E, which supply and take up the photographic paper or other sensitized tissue F, are fitted to turnas, for instance, by journals Gin their opposite ends, within U- shaped holders or carriers H, which are preferably made elastic and so as to exert a binding or holding tension on the ends of the rollers or against intervening flanges b on the pivots thereof to resist the pressure of the carrier and to restrain the rollers from slippin The ends of said carriers H fit down within and rest on or inas, for instance, by cars cgrooved bearers or guides (l in the ends of the compartments, within which the rollers are arranged. The intermediate compartments 0' are also provided with like bearers or guides (1. Thus the roller-carriers H constitute both holders for the rollers and springtension devices controlling the run or rotation of the rollers when inplace.

The journals or pivots G, which turn in the carriers H, are looselyinserted in the ends of the rollers, so that said pivots can be removed when required, leaving recesses in the ends of the rollers, which will adapt the rollers to be used in other photographic paper-holders having the pivots or journals in the sides of the case. One of these detachable journals or pivots G in the take-up roller E is made hollow, as shown at the left hand of Fig. 5,

passed in its run from the roller I) to the roller E. This face-board can be adjusted to its place either by dropping or sliding it therein, and may eitherbe rounded on its end edges or be provided with an anti-friction roller f at either end, as shown at the left hand of Fig. 2, to provide for the easy passage of the paper from and onto the end rollers, respectively.

The end marginal portions of the paper strip or sheet F are secured in the rollers D E by entering them down within a longitudinal groove g in each .roller and fastening them therein by a simple wedge or binding-strip, but preferably by a wire K, arranged to extend the whole length of the roller, and having bent ends h 72, as shown in Fig. 6, which enter down within end slots 2' in the ends of the roller when said wire is inserted within the longitudinal groove to wedge or hold the paper to its place on the roller.

Arranged 'intermediately of the paper-carrying-roller compartments 0 C is a cross-shaft 7;, having registering-wheels L L within the back of the opposite longitudinal marginal portions of the photographic strip or sheet F. These wheels L L are studded with projec tions or prickers on their peripheries for the purpose of engaging with the paper as it is passed over them. Attached to the interior of the back section or cover D of the holder is one or more springs M, which, as said back is shut, bear against the-shaft 7U to put resistance or tension upon the wheels L L to prevent them from slipping and to insure their engagement with the paper.

The shaft 7,; has its bearing in the sides of the body A, and the one end of said shaft has fixedly secured on it a disk or wheel N, provided with a tooth Z on its periphery, which tooth once during each revolution of the disk N engages with a oontinuously-toothed wheel 0, free to turn upon a stud m, and shifts said wheel 0 one teeth at a time. This wheel 0 has numbers or letters arranged either on its periphery or on its face outside of the holder and forms part of an automatic index or indicator for showing the number of exposures made and for determining the feed of the sheet for a series of exposures in succession, the numbers or letters on said. wheel 0 being successively visible through an eye-hole a in a guard P, eoverin g said. wheel, or being separately indicated as they pass a fixed n'larker. The broken-toothed wheel N might have more than one tooth, but a single tooth I will suffice, and the relative size of the wheels N O and L L may be changed without altering the principle of action of the automatic index; but, as here shown, two turns of the wheels L L by the adjustment or feed of the paper will give one full exposure of the sheet or strip, and through the single or partially toothed wheel N, which revolves in common with the motion of the paper, and the intermittent]y-inovjing wheel 0, movin only one tooth at a time, the number of teeds or exposures of the paper will be shown on the index. The shaft 7; has secured on its end outside of the wheel N a button 7', for turning said shaft to set the index. A ratchet-wheel or a rz'ttehet-toothed surface on the outside of the wheel N is also provided and a springpawl Q made to engage with the same to prevent slip or back action of the index.

By this automatic numbered index or indicator, actuated by the paper in motion, stock is taken of the amount of used and unused paper at any time within the holder, inasmuch as not only each exposure is registered, but also any number of successive exposures. This will enable the artist to see at a glance, after taking a series of pictures, how many succeeding exposures the remainder of the paper in the holder will admit of.

Having thus fully described my invention, whatI claim new, and desire to secure by Letters Patent, is

1. In photographic paper-roll holders, the U-shaped carrier II, adapted to operate sphstantially as shown and described.

2. In photographic paper-roll ln'ildcrs, the combination, with the paper-carrying roller, of a spring carrier detachable from the holder and constructed to form bearings for the ends of the roller and to throw tension on the roller at its ends, substantially as specitied.

In a photographic camera, the combination of the carrier .II', and the pivots (:ir, constructed with flanges 1), arranged a short dis tance from the ends of the pivots, substantially as and for the purpose set forth.

4. The combination, with the paper-carryi ng roller, of the roller-carriers If, and the fixed bearing supports or guides (I for said carriers, substantially as specified.

The combination of the U-shaped carrier II with the paperearr ving rollers, substai'itially as shown and described.

6. The paper-carrying roller, constructed with a longitudinal groove and. aslot at each end of the groove, deeper than the groove, in combination with a rod adapted to fit said groove, and provided at each extremity with a bent end or hook adapted to enter the said slots, as herein set forth.

7. In a photographic paper-roll holder, the body A, provided with supplementary intermediate guides for extra paper-carrying rollers, substantially as and. for the purpose heroin set forth.

8. In a photographic paper-roll holder, the combination, with the holder, of an automatic numbered index or indicator, actuated by the paper in motion and constructed to show and register each exposure and the number of consecutive exposures of the sensitized paper or sheet, essentially as and for the purposes herein set forth.

9. The combination, with the registering wheels L and their shaft 10, 'of the back or cover D, and one or more springs M, carried by said cover and arranged to bear upon or IO against said shaft, essentially as and for the purpose herein set forth.

ERASTUS B. BARKER. Vitnesses:

C. SEDGWIGK, EDWD. M. CLARK. 

